Jeong Inseong 정인성 was born on Friday, July 1, 1994. His zodiac star sign is Cancer and he was born in the Chinese Year of the Dog. He’s 183 cm or 6' tall which means he’s only taller than the maknae, Heejun, who is 180 cm or 5'11". Inseong and Jihun are both blood type A.
Inseong has a positive personality and a cute habit of licking his lips. He eats everything well and the only food he dislikes is ginger. He's an adventurous eater and he would love to travel the world tasting a variety of delicious food. He seems to be an adventurous person in general considering the fact that he really wants to go skydiving one day.
He’s the main vocal for KNK, which of course is Kpop, but his musical tastes range from hip-hop to ballads to jazz. Some of his favorite artists are Forty, Xia Junsu, Kim Beomsoo, and Na Yoonkwon, and his favorite karaoke song is "Drunken Truth." As a member of KNK, he would love to do a duet with fans and wants for KNK to be remembered as a group that produces good music and has great vocals.
He was a Big Hit Entertainment trainee with Seungjun before he moved to FNC Entertainment.
He and Heejun appeared on the reality show "Cheongdam-dong 111" in 2013. He was in the show's Kokoma Band (꼬꼬마 밴드), which was established three months before filming.
After coming to YNB Entertainment, Inseong and Seungjun appeared in Bestie’s MV for "Excuse Me" and were backup dancers for Bestie's "I Need You."